Suraj Kumar
Birsa Institute of Technology (BIT), Sindri
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Alithea Fernandes
Don Bosco College of Engineering (DBCE), Goa
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3 Other formulas that you can solve using the same Inputs

Focal length of lens when photo scale and height are known
Focal length of lens=(Photo scale*(Flying height of airplane -Elevation of point)) GO
Flying height of airplane above datum
Flying height of airplane =((Focal length of lens/Photo scale)+Elevation of point) GO
Elevation of point, line, or area
Elevation of point=(Flying height of airplane -(Focal length of lens/Photo scale)) GO

Photo scale when focal length and heights are known Formula

Photo scale=(Focal length of lens/(Flying height of airplane -Elevation of point))
P=(f/(H-h<sub>1</sub>))
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Horizontal distance between center of transit and rod GO
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Focal length of lens when photo scale and height are known GO
Flying height of airplane above datum GO
Elevation of point, line, or area GO
Temperature Correction to Measured Length GO
Measured Length when Temperature Correction is Given GO
Correction to be Subtracted from Slope Distance GO
Measured Length when Correction to be Subtracted from Slope Distance is Given GO
Correction to be Subtracted from Slope Distance when Difference in Elevation is Given GO
Tension Correction to Measured Length GO
Measured Length when Tension Correction to Measured Length is Given GO
Tape Cross-Sectional Area when Tension Correction to Measured Length is Given GO
Actual Tension when Tension Correction to Measured Length is Given GO
Tape Standardized Tension when Tension Correction to Measured Length is Given GO
Tape Elasticity Modulus when Tension Correction to Measured Length is Given GO
Sag Correction of Unsupported Tape GO
Tape Weight when Sag Correction of Unsupported Tape is Given GO
Unsupported Length when Sag Correction of Unsupported Tape is Given GO
Actual Tension when Sag Correction of Unsupported Tape is Given GO
Relative Accuracy for First Order Class I GO
Relative Accuracy for First Order Class II GO
Relative Accuracy for Second Order Class I GO
Relative Accuracy for Second Order Class II GO
Relative Accuracy for Third Order GO
Probable Error of Mean GO
Mean Error when Sum of Errors is Given GO
Mean Error when Specified Error of a Single Measurement is Given GO
True Error GO
True Value when True Error is Given GO
Observed Value when True Error is Given GO
Relative Error GO
True Error when Relative Error is Given GO
Observed Value when Relative Error is Given GO
Residual Error GO
Most Probable Value with different weightage GO
Most Probable Value with Same Weightage for Observations GO
Most Probable Value when Residual Error is Given GO
Observed Value when Residual Error is Given GO
Standard Deviation GO
Residual Variation when Most Probable Value is Given GO
Variance GO
Most Probable Error When Standard Deviation is Given GO
Standard Deviation of Weighted Observations GO
Standard Error of Mean of Weighted Observations GO
Standard Error of Function Where the variables are Subjected to Addition GO
Standard Error of Function Where the variables are Subjected to Multiplication GO
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What is photo scale ?

The scale of a photograph is determined by the focal length of the camera and the flying height above the ground. The focal length is the distance from the middle of the camera lens to the focal plane. Focal length is precisely measured when cameras are calibrated and is typically expressed inn millimeters (mm).

How to Calculate Photo scale when focal length and heights are known?

Photo scale when focal length and heights are known calculator uses Photo scale=(Focal length of lens/(Flying height of airplane -Elevation of point)) to calculate the Photo scale, The Photo scale when focal length and heights are known formula is defined as the focal length of the camera and the flying height above the ground. Photo scale and is denoted by P symbol.

How to calculate Photo scale when focal length and heights are known using this online calculator? To use this online calculator for Photo scale when focal length and heights are known, enter Focal length of lens (f), Flying height of airplane (H) and Elevation of point (h1) and hit the calculate button. Here is how the Photo scale when focal length and heights are known calculation can be explained with given input values -> 0.1 = (2/(30-10)).

FAQ

What is Photo scale when focal length and heights are known?
The Photo scale when focal length and heights are known formula is defined as the focal length of the camera and the flying height above the ground and is represented as P=(f/(H-h1)) or Photo scale=(Focal length of lens/(Flying height of airplane -Elevation of point)). Focal length of lens is usually represented in millimeters (mm), is the basic description of a photographic lens, Flying height of airplane above datum (usually mean sea level) and Elevation of point, line, or area with respect to datum.
How to calculate Photo scale when focal length and heights are known?
The Photo scale when focal length and heights are known formula is defined as the focal length of the camera and the flying height above the ground is calculated using Photo scale=(Focal length of lens/(Flying height of airplane -Elevation of point)). To calculate Photo scale when focal length and heights are known, you need Focal length of lens (f), Flying height of airplane (H) and Elevation of point (h1). With our tool, you need to enter the respective value for Focal length of lens, Flying height of airplane and Elevation of point and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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